Car-truck.



A. F. BATCHELDER. GAR TRUCK. APPLICATION FILED JAN.29.1908.

919,305, Patented Apr. 27, 1909.

Ihvenbor:

515 "Myinventiou will be more fully under- T INITED STATES PATENT OFFICE.

ASA l". BATCH ELDER, OF SCHENEWIADY, NEW YORK, ASSIGNUR Tl) GENERAL HLEC'IIUU COMPANY, A CORPORATION OF NEW YORK.

CAB-TRUCK.

Specification of Letters Patent.

Patented April 27', 1909.

Application filed January 29, 1908. Serial No. 413,170.

T all whom it may concern:

Be it known that 1, Ass F. BATCIIELDER, a citizen of the United States, residing: at Schenectady, county of Schenectady, State of New York, have invented certain new and useful Improvements in Car-Trucks. of which the following is aspecification.

My invention relates to trucks for vehicles. and particularly to trucks for cars used on railroads.

In its broad aspect my invention is ada ted for use in connection with vehicles of a 1 kinds.

For reasons hereinafter brought out, it is desirable in vehicles, particularly car trucks. that the frame in which the journal boxes of the wheel axles are sup orted shall, in effect, rest on three points. is usually stated in this art by saying that. the frame must have threepoint suspension. It has heretofore been customary in two axle trucks to mount the truck frame at one end directly on the journal boxes of one of the axles, and to mount the other end ofthe 5 truck frame through a system of levers u on the other two journal boxes jointly. "ith this arrangement two of the points of suspension are near one end of the truck on opposite sides thereof, and the third point of 30 suspension is at the other end of the truck approximatel midway of its width. I have found-that e same advantageous results may obtained and that the truck constructlon may be considerably simplified and v 35 cheapened by locating the points of suspension-,-,two on one side of the truck and one onthe other side.

:Lfi invention, therefore, consists in providlllglheans whereby one side frame is, in

40. efiect, suspended at two points on the ou'rnal boxes on that side, and means wherey other side frame is, in efl'eot, supggtted at one point jointly on the journal xes on' that slde.

stood from the foliowing' description taken v connection with the accompanying drawigure 1 is azi 'eleyation of one side of a .axle truck m which or invention is the! side thereof.

"ourn ame at the corner where the journal box 8,

evation of the the frame about the d} only to a two axleztruckflfwish it un Mood that .itcan eg ually well be applied to a truck having any number-of axles, since whereas, in ellect, two-point. suspension on one side and one-point suspension on the other side may be obtained by the use of suitable arrangements of equalizing levers.

Referring to the drawing, one side frame is shown at 3, and the other side frame at 4, in Figs. 1 and 2, respectively. The bolster, which is supported by the side frames, is shown in outline at 5. Wheels 6, 6 are shown mounted on an axle 7 having journal boxes 8, S, and wheels 9 are supported on an axle 10 running in journal boxes 11, 11. These journal boxes slide in the frames 3 and 4 in the usual manner. Above each journal box is a spring 12 which is arranged intermediate the truck frame and the journal boxes.

In Fig. 1 the side frame 3 is'shown as carrying an etpializing lever 13, pinned at a point 14 in rackets or lugs ocated approximately midway of the length of the frame 3. The ends of this lever 13 are con nected bylinks 15 and 16 with ends of the springs 12 resting on the journal boxes 11 and 8, .the other ends of these springs 12 being connected to the frame 3 near its ends by links 17 and 18. W'it-h this arrangementit is clear that the frame 3 is in effect supported at the point 14 on the journal boxes 11 and 8 joint y.

Referring to Fig. 2, the frame 4 is there shown s11 ported at one end on journal box 8 throng l the links 19 and the sprin 12, and at. the other end on the journal box 11 through the links 20 and the spring 12. With this arrangement it is apparent that the side frame 4 is in effect supported at one end directlv on t-he'joumal box 8 and on the other end directly on the j ournal box 11.

With a truck ha v the system of suspension above described, raising of either of the wheels 9 or 6 and, therefore, raising of the journal boxes 1 l or 8 will result. in lifting the truck frame at the oint 14 and rotating it about an axis drawn t rou h the two points of support on the other side of the truck. Raisin of the wheel 6 and, therefore, the box 8 will result in raising the truck is located and rotatin axis drawn through t e oint of support at the other endof that side mom and t point of su port midwaf' the length of t a other side ame. Simi arly, raising of the esin lowill raise the truck frame at the corner n which the 'ournnl box 11 is located and will rotate it u. out the axis passing through the oint of sup ort at the other end of Unit side rame and t 1e single point of support midway the length of the other side frame. The truck frame has, therefore, three-point suspension.

What I claim as new and desire to secure by Letters Patent of the United States, is,--

1. In a car truck, a plurality of wheel axles, journal boxes therefor, side frames in which said journal boxes are supported, mesns for supportin one side frame at two polnts on the oin-nail boxes on that side, and means for porting the other side frame at one point su jolntlIy on the journal boxes on that side.

a car truck, a plurality of wheel axles,

journal boxes therefor, side frames in which said journal boxes are sup tern through which one o the sideframes is sup )orted at two points on the journal boxes in t mt side frame, and another lever system through which the other side frame is suported at one point jointly on the journal oxes in that side frame.

3. In n-car truck, a plurality ofwheel axles, journal boxes therefor, side said journal boxes are sup ort ed, a lever system through which one o sup orted near each end on the journal boxes in t at side frame and another lever s 'stem throu h which the other side frame is suported near its middle jointly on the journal xes in that side frame.

4. In a car truck two wheel axles, journal boxes therefor, side frames in which said journal boxes are supported, means for supportinfi one side frame at one end on one ourna box in said side frame and at the other end upon the other 'ournal box in said side frame, and means or supporting the orted, a lever sysj frames in which the side frames is 5 other side frame through an equalizin system of levers jointly on the two ournal oxes in that side frame.

5. In a car truck two wheel axles, journal boxes therefor, side frames in which said journal boxes are su )ported, a lever system throu h which one of said side frames is supported at one end on one journal box in said 1 side frame and at. the other end on the other journal box in said side frame, and another ever system through which the other side j frame 18 supported nearits middle j ointlv on i the journal boxes in that side frame.

l 6. In acer truck, two wheel axles, j ournnl boxes therefor, side frames in which said journal boxes are supported, aleaf spring arranged above each 'ournal box with its mid- 5 die point resting t ereon, links for hangin one of the side frames directly on two of said springs, and links and an equalizing lever and links for hanging the other side frame on the other two springs jointly.

7. In a car truck two wheel axles, journal boxes therefor, side frames in which said journal boxes are supported, a leaf spring 1 above each of said journal boxes and having its middle point resting thereon, links for connectin the ends of said s rings on one side of said truck directly to t e side frame, links for connecting one end of each of the I springs on the other side of the truck directly l to that side frame, and links and an equalizmg lever for connecting the other ends of S 3.1d last mentioned springs to a- Hoint on that side lirame approximately mi way of its n witness whereof, I have hereunto set my hand this 27th day of January, 1908.

ASA F. BATCHELDER len Witnesses:

HELEN Onronn, BENJAMIN B. HULL. 

